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3 SheetsSheet 1 (No Model.) H. B. ROBISCHUNG.

BRAKE BEAM. P No. 453,73% Patented June 9,1891.

[No Model.) 3 Sheets-Sheet 2.

H. B. ROBISGHUNG.

' BRAKE BEAM.

No. 453,739. .Patentd June 9, 1891.

(No Model.) 3 Sheets-Sheet 3,

. H. B. ROBISGHUNG.

BRAKE BEAM.

No. 453,739. Patented June 9,1891.

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. InueruEor if I l UNirnn STarns PATENT Grinch;

HENRY is. nonisoHtINe, or KALA Azoo, InIGI-IIGAN, ASSIGNOR TO THENATIONAL HOLLOWBRAKE BEAM- ooMPANY, or ornoAco, ILLINOIS.

eanfn'sleenwit H srncrrrca'rron forming part of Letters Patent No.453,739, dated June e, 1891.

To all whom it may concern.- 7

Be it known that I, HENRY B. RomsoHUNc, a citizen of the United States,residing at Kalamazoo, in the county of Kalamazoo and State oi Michigan,have invented certain new and useful Improvements in Brake-Beams; and Ihereby declare the following to be a full, clear, and exact descriptionof the same, reterence being had to the accompanying drawings, in whioh-Figure 1 is a perspective View of a trussed brake-beam embodying myinvention. Fig. 2 is a detached side view of the strut partlybroken'away to show the manner of obtain: ing the pull on the strut.Fig. 3 is a detached view of the extension or nose piece of the strut.Fig. 4 is a sectional View of the nosepiece on the line a: at, Fig.Figs. 5, 6, and 7 are detail views of the brake-head and the end cap orsleeve. Fig. 8 is a diagram corresponding to Fig. 5, and showing indotted lines the manner of adj listing the brake-head. Fig. 9 is anelevation of the end cap or sleeve.

Fig. 10 is a longitudinal section of the sleeve or end cap through thecenter of the truss-rod opening. Fig. 11 is a transverse section of theend cap or sleeve, taken on the line '51 c, Fig. 9 and Fig. 12isalongitudinal sectional view of asix-wheel truck and its brake-beams,illustrating the application of beams embodying my invention to 'each ofthree sets of wheels, the line of draft being different in each beam.

' Like symbols refer to like parts wherever they occur.

My invention relates to the con structionof brake-beams in general, butis more especially adapted to beams for use ontrucks having three ormore sets of wheels, where each set of wheels is to be provided with abrake-beam, as in the case of Pullman sleepers and like heavy cars orcoaches, and where, in consequence of the character of. the connectionbetween the beams, the angle of draft varies in each beam, and that itmay be readily applicable to the last-named class it has for its objectthe production of a reversible or universal beam. 1

To this end the invention, broadly stated, consists in the combination,with a brakebeam, of an adjustable brake-head and means Applicationfiled January 31, i891. Scrialhl'm379fi92. (lhimodeh) for lockingofisecuring the brake-head in position on the beam after it has beenadjusted to any desired angle relative to the strut or relative to thelineot draft. There are other minor features of invention, all as willhere- "inafter more fully appear.

I will now proceed to describe my invention more fully, so that othersskilled in the art to which it appertains may apply the same.

In the drawings, A indicates the beam, B its strut, 'and C thetruss-rod, the Whole forming a now well-known form of trussed brakebeam,the elements of which may, for the purposes of the present invention, beany of several well-known forms thongh I prefer that the beam A shouldbeof tubular form longitudinally slotted near its ends for the passageotthe truss-rod C and notched at its ends to prevent the rotation of, thebrakehead, and that the strut or post should be provided with anextension or nose piece I) with an elongated openings for the passage ofthe truss-rod and to relieve the truss-rod of the draft, substantiallyas described-in Patent No. 440,438, dated November 11, 1890, though I donot herein limit the invention thereto.

I provide the. beam hereinbefore specified or its equivalent with endcaps or sleeves 1,

adapted to fit over the ends of said .beams,

end cap or sleeve 1 is a projection 3, (see' Fig. 10,) adapted to engagea notch in the end of the beam Aand prevent the rotation of the end capor sleeve on the beam. The sleeve or end cap has a small exterior flange4 on its inner end, which forms a seat or abutment for the head, and alongitudinal extension orprojection 5 at its outer end, which isslotted, as at 6, (see Figs. 9 and 10,) for the passage of'aclamping-bolt, which secures the brake-head to the end cap or sleeve l.This end cap I or sleeve forms a journal on whichthe brake head may ,berotated for purposes of adj ustment.

7 indibates a brake head, preferably pro-. vided with upper and lowerpivot-holes '8 and 8 for the rear suspension-rods of the beam,

the end cap,-and a bolt-hole 10, "through,-'

which and theslot 6 of extension 5 aclainping-bolt 11 may be passed toadjustably secure the brake-head to the end cap or sleeve 1.

'11 indicates the clamp-bolt, which secures the head to the endcap-sleeve; 11 3 its nut, 2c and 11 a jam-nut, used for greatersecurity.

, B indicates the strut or post of the trussed beam, which may have avertical slot 12 and the usual lever-pin openings 13, if desired. It isprovided with perforated lugs or ears 14 5 .for the forwardsuspension-rod,and has at its outer end the concave seat 15 for thetrussrod 0. In the open-ended slot 12 of the strut is inserted anextension piece or nose b, secured bya pin b, which passes through the otruss, and the opening a of said nose-piece,

through which the truss-rod O passes,is elongated (see Figs. 2 and 4) toallow a clearance between the truss-rodand the rear edge of theopeningc, to prevent the pull coming on- 3 5 the tr'uss-rodC. The outer end-ofsaid nose piece b is provided with two ears b b between which the draftor connecting rod is pivoted, and, if desired, the nose-piece. may

' be swelled out or re-enforced opposite the 4o pin-opening b, asindicated at b, Figs. 2 and 4:. In'Fig. 12 of the drawings are shownthree beams with adjustablebrake-heads and having the characteristicshereinbefore specified, said beams applied to a truck having three setsof wheels. Each beam A'has its usual suspension-rods or rearsuspension-rods, (not shown in the drawings,) its forwardsuspension-rods 14-, and the several beams are con- 7 nected witheachother and to the main pull- 5o rod P by a series of intermediatepull-rods 15 15 and levers 16 16 16 and it will be no ticed that thedraft on each beam isat adifferent angle relative to the head, and thatthe-middle beam is in an inverted position. The particular arrangementor system of pull-rods and levers for operating the levers isnotmaterial, and the system chosen for purposes of illustration is notintended to be a matter of limitation, as any other system may be used,and whatever system is used in case of a six-wheel truck the 'draft willbe at a different angle on the several beams.

I wish it distinctly understood that there is no intention on my parttolimit the inven- 6 5 tion herein contained to triple gear or thosehaving three sets of wheels, as the features.

of invention are equally applicable. to all beams. To apply my universalbeam under such conditions, all that is necessary is'to loosen theclamp-bolt 11, rotate the head (seej dotted lines, Fig.8) until it hasassumed a proper angleto the strut C and to the line of draft, whichisepermitted' by slot 6 in extension 5 of sleeve 1, and then tighten upthe clamp-bolt 11 to retain the head in the desired position.

I am aware that a beam having journal ends and loosely mounted selfadjusting heads has heretofore been devised, and do not herein claimsuch a construction or combination; but, having herein described myinvention 'and the best means 7 of carrying out the same,

known to 'me I claim I a 1. The combination, with a brake-beammf anadjustable brake-head and means forse curely locking the head to .thebeam after adjustment thereof, substantially as andfor thepurposesspecified.

. 2. The combination, with a trussed brahebeam, of an adjustablebrake-head and -meai1s for securely locking the brake-head to .the beam,snbstantiallyas and for the pur poses. specified.

3. The combination, witir-a trussed brakebeam, of an end cap or sleevehaving on its exterior an inclined surface for the clampnut ofthe'truss-rod and having its bore eccentric to its outer surface, and adetachable brake-head, substantially as and for. the purposes.specified.

4. The combination, with a brake-beam, of

sion on its outer end, a brake-head having a corresponding projectionprovided with a ,an end cap or sleeve having a slotted-exten- 5. In abrake-beam, the combination, with an end sleeve having a segmentalconvex projection, of a brake-head adapted to be rotated on the sleeveand having a segmental concave projection, andmeans for firmlysecuringthe head tofth'e sleeve, substantially as and for the purposesspecified. 3

6. Ina brake-beam, the combination, with an end sleeve having asegmental convex projection, of abrake-head adapted to be rotated on thesleeve and provided with a segmental concave projection, oneof saidprojections provided with a slot which permits the adjustment of thehead on the sleeve, substantially as andfifor the purposesspecified. I

,In testimony whereof I afiix my signature, in presence of twowitnesses, this28th day of January, 1891. g

x HENRY B.'ROBIS CHUNG. VVitnessesg' E. B. LEIGH, E. T. WALKER.

